Guyana Goldfields Rejects Unsolicited Gran Colombia Acquisition Proposal and Reaffirms Commitment to Transaction with Silvercorp Metals May 13, 2020 | Companies News, Industry, Mining Visit Gran Colombia Gold Corp. page for more research, discussion boards and to like, and share. Source: https://finance.yahoo.com/news/guyana-goldfields-rejects-unsolicited-gran-233900933.html